Home / 19,771.92-27,285.42-12,216.51

Finding the Fourth Proportional to 19,771.92, 27,285.42 and 12,216.51

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Solution

The fourth proportional to 19,771.92, 27,285.42 and 12,216.51 is: 16,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.92 : 27,285.42 = 12,216.51 : x
  2. Step 2: Convert to fraction form
    19,771.92/27,285.42 = 12,216.51/x
  3. Step 3: Cross multiply
    19,771.92x = 27,285.42 × 12,216.51
  4. Step 4: Simplify right side
    19,771.92x = 333,332,606.28
  5. Step 5: Solve for x
    x = 333,332,606.28/19,771.92
  6. Step 6: Final answer
    x = 16,858.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.